Hydrolysis of AlLi/NaBH4 system promoted by Co powder with different particle size and amount as synergistic hydrogen generation for portable fuel cell
Hydrolysis of AlLi/NaBH4 system promoted by Co powder with different particle size and amount as synergistic hydrogen generation for portable fuel cell
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不同粒径和用量的Co粉促进AlLi/NaBH4体系水解作为便携式燃料电池协同产氢
DOI：
10.1016/j.ijhydene.2013.02.051
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发表时间：
2013-08
期刊：
影响因子：
--
通讯作者：
舒康颖
中科院分区：
文献类型：
--
作者：
舒康颖
研究了不同Co粉粒度和添加量对铝锂/硼氢化钠（简称AlLi/NaBH 4）体系水解制氢性能的影响。所设计的铝锂钴（简称Al-Li-Co/NaBH 4）体系，包括Al-5wt%Li-50wt%nano Co，Al-7.5wt%Li-25wt%nano Co，Al-5wt%Li-50wt%micro Co，Al-7.5wt%Li-25wt%micro Co，在323 K下的氢产率为100%.这些体系的产氢速率受Co种类、Co量以及NaBH 4水解的连续运行调节。本研究中详细阐述了其活化机理，包括Al0.94Co1.06合金的形成和高活性、高稳定性的Co基催化剂的形成。实验结果表明，该氢源价格低廉，效率高，可用于便携式燃料电池。
Hydrogen generation from the hydrolysis of aluminum lithium/sodium borohydride (referred to as AlLi/NaBH4) system activated by Co powder with different particle size and amount was evaluated in this paper. The designed aluminum–lithium–cobalt (referred to as Al–Li–Co/NaBH4) systems including Al-5 wt% Li-50 wt% nano Co, Al-7.5 wt% Li-25 wt% nano Co, Al-5 wt% Li-50 wt% micro Co, and Al-7.5 wt% Li-25 wt% micro Co had 100% hydrogen yield at 323 K. The hydrogen generation rates of these systems were regulated by Co species, Co amount, as well as consecutive runs of NaBH4hydrolysis. The underlying activation mechanism, including the formation of Al0.94Co1.06alloy and highly active and stable Co-based catalyst has been elaborated in this study. Experimental data present an inexpensive and highly efficient hydrogen source for portable fuel cell.
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